Now to explain why Ham radio guys can be a whole lot more useful that academic & archival historians** for EW -- the 2 August 1939, LZ130 Graf Zeppelin flight.
**Note: Every field has it's weak points. Extremely few academic tract historians are radio geeks... 2/
...and being a radio geek is a better skill set for the subject matter than most PhD's not awarded to Dr Alfred Price.
LZ130 flew one of the first ELINT missions ever, against the UK Chain Home system with 25 RF engineers aboard. 3/
along with the engineers, LZ130 had broadband radio receivers covering 2 -100 MHz.
Luftwaffe General Wolfgang Martini thought that the British CH towers might be radar and put together this flight and an earlier on in May 1940.
Neither found radar. 4/
The German engineers believed that Britain was developing radars in the same 100-150 MHz
range as Germany, so the team concentrated on that band.
Up to this point, we are in the "standard narrative" historiography. 5/
This is where Adam Farson being a Ham radio guy comes in for "non-standard" history.
He understands the affect of the Mains cycle or powerline hum.
...in why General Martini's boffins missed the CH signal.
The Luftwaffe signals boffins picked up pulsed signals of CH modulated by 'mains hum' in the 20-50 MHz range, but discounted these as ionosonde signals or mains powerline hum from the UK national grid. 7/
According to Mr. Farson, the British grid was synchronous.
To avoid grid electromagnetic interference (EMI) interference, the 250 kW peak pulse CH transmitters were keyed from different points on the 50 Hz mains cycle to avoid co-channel interference between stations.
8/
This clever synchronization scheme of the CH radar builders to avoid the UK National Grid's mains cycle/powerline hum from screwing up their radar ended up camouflaging the CH signal from the Luftwaffe radar signals intercept boffins.
9/
Where have you heard that bit of electronic warfare history in the "Battle of Britain" narrative?
Even Dr Alfred Price and Dr. R. V. Jones missed this one.
/End
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That video of Ukrainian PSU glide bomb strikes underlines Russia still has nothing like the partial dry bridge gap crossing capability of a medium girder bridge in the 3rd year of the war in Ukraine.
Please recall DR. Celeste Wallander [ASSISTANT SECRETARY OF DEFENSE
FOR INTERNATIONAL SECURITY AFFAIRS] extended rant about what the Biden Administration considered civilian versus military targets inside Russia for Ukrainian assault drones.
Wallander saying Russian oil refineries are civilian targets most likely means the Biden Administration views Russian power infrastructure even more of a civilian target.
The lack of AFU grid strikes on Russia & this new power grid killing drone warhead make me go...hummm.🤔
3/3
This act of cost-ineffective public theater by Putin is his going away present to the Western escalation managers they so desperately need to justify their failed retread of appeasement policy jobs
The cost of an IRBM/ICBM is around 10-20 times the cost of an ALCM/GLCM/SLCM 1/
After that event, every non-reusable orbital class rocket launcher in the world designed and built before her will be obsolete the same way every battleship built and designed before the all big gun HMS Dreadnought was made so.
2/3
Nothing except another fully reusable rocket can compete with Starship in exactly the same way that no other battleship could compete with HMS Dreadnought, unless it was a all big gun main battery dreadnought battleship.
The spokesman of the Main Intelligence Directorate of the Ministry of Defense of Ukraine, Andriy Yusov has stated that Russia's military-industrial complex can produce 40-50 Kh-101 cruise missiles every month.
The question that @GrandpaRoy2 photo raises is exactly how much of that X-101 production rate is being assembled using recycled Kh-55/55SM missile components?
"More than zero" was confirmed from that photo...but exactly how many?
Russia seems headed towards a February 1917 moment.
1. A kilogram of potatoes in Nov 2024 is 73% more expensive than in Jan 2024. 2. Interest rates reached 21% in Oct 2024 3. Mortgage rates have risen to 28%